Wrench



A. A. MOSS.

WRENCH.

APPLICATION FILED MAR. 21. I919.

' Patented June 24, 1919.

aftozmu o I ALBERT AUGUSTUS MOSS, OF NEWARK, JERSEY.

WRENCH.

Specification of Letters Patent. Patgnted J 11113 24, 1919.

Application filed March 27, 1819. Serial No. 285,416.

To all who 11bit may concern:

Be it known that 1,. ALBERT AUGUSTUS Moss, a citizen of the UnitedStates, residing at Newark, in the county of Essex and State of NewJersey, have invented a new and useful Wrench, of which the following isa specification.

The device forming the subject matter of this application. is a wrench,and the invention aims to provide novel means for holding the movablejaw in adjusted positions with respect to the fixed jaw.

it is within the province of the disclosure to improve generally and toenhance the utility of devices of that type to which the inventionappertains.

With the above and other objects in view,

which will appear as the description proceeds, the invention resides inthe combination and arrangement of parts and in the details ofconstruction hereinafter described and claimed, it being understoodthat,within the scope of what is claimed,changes in the precise embodimentof: theinvention can be made without departing from the spirit of theinvention. In the accompanying drawings:

Figure 1 shows in side elevation, a wrench constructed in accordancewith the invention, parts being shown in section and parts being brokenaway; Fig.2 is an elevation wherein the wrench is viewed at right anglesto the showing of Fig. 1; Fig. 3 is a cross section on the line 3-3 ofFig. 1; Fig, 4 is a cross section on the line 44 of Fig. 1. The numeral1 denotes a handle carrying a shank 2 provided with a fixed aw 3. On itssides, the shank 2 is supplied with outstanding ribs 4 having teeth 5 ontheir forward edges, although the forward edges of the ribs may beroughened in any desired way. The ribs 4 extend diagonally of the shank2, and, consequently, form an unusually effective reinforcement for theshank.

The numeral 6 designates a movable jaw adapted to cooperate with thefixed jaw 3, the movable jaw constituting part of a slidable memberincluding a bottom portion 7 connected with the movable jaw by side arms8. The movable jaw 6 and its bottom portion 7 are, provided withopenings 9 receiving the shank 2 slidably. There are grooves 10 in theparts 6, 7 and 8, the grooves beingelongated transversely of the wrench,so as to receive the inclined ribs 4. In its forward portion, themovable jaw 6 has an opening grip. Side portions of the. latch 20 aresupplied with projections or dogs 21 adapted to coa-ct with the teeth 22of racks formed on the fingers 12 which project from the member 7. A pin23 is mounted transversely in the grip 16' and is received slidablyatits ends in slots 24 formed in the side portions of the U-shaped latch20. Consequently, the latch 20 is mounted for right line slidingmovement on the shank 16, so that the dogs 21 may be moved into and outof engagement with the teeth 22 on the fingers 12. The'latch 20 isequipped with an internal recess 25 wherein is located a compressionspring- 26, one end of whichengagesan abutment27 extended from the grip16, the other end of the spring abutting against the latch 20 at the endof the recess 25. Clearly, the spring 26 forms a means whereby the dogsare engaged normally with the teeth 22 on the fingers 12.

The invention comprises a retainer which is H-shaped in cross section,the retainer including a web 28 extended longitudinally of the wrench,inner flanges 29 and outer flanges 30, the flanges 29 and 30 extendingtransversely of the wrench. The inwardly projecting flanges 29 receivethe forward edge of the shank 2, the web 28 lying in front of the shank.The ends of the flanges 29 and 30 are engaged with the lower edges ofthe jaw 6 and with the upper edges of the fingers 12, slidably, to guidethe retainer as the same moves transversely of the shank 2'. On theiredges, inwardly projecting flanges 29 are provided with teeth 31 adaptedto cooperate with the teeth 5 on the ribs 4. The boss 18 on theintermediate portion of the lever 14 extends between the outwardlyprojecting flanges of the retainer, and these flanges carry the ends ofa pin 32 slidably received in the slot 19 of the boss 18. It may beobserved, at this point, that the bend 17 of the lever 14 is slidablyreceived between the outwardly extended flanges 30, lateral movement ofthe leverv thus being limited.

In practical operation, the latch 20 is retracted by thumb pressure sothat the projections or dogs 21 do not engage with the teeth 22. Then,the lever 14 may be swung inwardly or outwardly on its pivotal mounting15, carrying with it the H-shaped-retainer, the teeth 31 on the flanges29 of the retainer being moved out of engagement with the teeth 5 on theribs 4. Then, the jaws 6 may be shifted toward and away from the jaw 3.The lever 14 may be swung inwardly, to cause the teeth 31 on theretainer to engage with the teeth 5 on the ribs 4, and when the latch 20is released, the dogs 21 will coact withthe teeth 22 to hold the lever14 and the H-shaped retainer in such a position that the teeth 31 and 5will cooperate, thereby maintaining the jaw 6 in any position to whichit may have been adjuste'd.

, Having thus described the invention, what is claimed is 1. A wrenchcomprising a shank having a fixed aw; a movable jaW slidable on theshank and provided with teeth on its inner end; a retainer slidable inthe movable jaw transversely of the shank, the shank and the retalnerhaving interengaging elements; a lever pivoted to the movable jaw and'tothe retainer; and I a spring actuated latch mounted on the leverandmovable longicoacting ing two parts received between the out wardlyextended flanges, one of said parts being pivoted to the outwardlyextended flanges.

3. A wrench comprising a shank having side ribs extended diagonally ofthe shank, and provided with a fixed jaw; a movable jaw slidable on theshank; a retainer slidable in the movable jaw and including flangesreceiving the shank and cooperating with the ribs; a lever pivoted tothe movable jaw and pivoted to the retainer; and a latch forming areleasable connection between the lever and the movable jaw.

In testimony that I claim the foregoing as my own, I have hereto affixedmy signature in the presence of tWo witnesses.

ALBERT AUGUSTUS MOSS.

Witnesses:

BA'RNEY LEVY, C. L. VOORHEES.

Copies of this patent may be obtained for -five cents each, byaddressing the Commissioner of Patents.

7 Washington, I). C.

